MRO module 6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| show | A type of digital imaging system in which the image receptor is composed of an array of electronic sensors that "capture" the radiation exiting the patient and send that information in digital format to a computer
🗑
|
||||
| show | A type of digital imaging system in which the image receptor is composed of an array of electronic sensors that "capture" the radiation exiting the patient and send that information in digital format to a computer
🗑
|
||||
| show | System consisting of digital acquisition, display workstations and storage devices interconnected through a network
🗑
|
||||
| Exposure latitude | show 🗑
|
||||
| show | The range of gray scale values that can be assigned to each pixel
🗑
|
||||
| show | A graphic diagram that is used to analyze the pixel values in the digital image
🗑
|
||||
| Noise | show 🗑
|
||||
| Lookup table (LUT) | show 🗑
|
||||
| show | A system in which the length of the exposure is determined automatically by preprogrammed sensors located between the patient and receptor that terminate exposure when the density is sufficient
🗑
|
||||
| What controls density in a digital system? | show 🗑
|
||||
| What is the primary factor influencing contrast in a digital system? | show 🗑
|
||||
| show | Digital has a wider dynamic range
🗑
|
||||
| show | False
🗑
|
||||
| What should kVp selection be based on? | show 🗑
|
||||
| Which receptor has a wider exposure latitude? 1)Digital or 2)Film/Screen | show 🗑
|
||||
| Which receptor can display the longest grey scale? 1)Digital 2)Film/screen | show 🗑
|
||||
| show | A phosphor that produces light when stimulated by light or x-ray photons
(CR)
🗑
|
||||
| show | Group of detectors and the interspace material used to separate them (DR)
🗑
|
||||
| PSP (photostimulable phosphor plate) similiar to an intensifying screen of a film/screen system, it has the following layers | show 🗑
|
||||
| show | An energy level just beyond the valence shell of an atom where electrons of conductors are free to travel
🗑
|
||||
| Valence band | show 🗑
|
||||
| Charged-coupled device (CCD) | show 🗑
|
||||
| X-ray scintillator | show 🗑
|
||||
| show | A solid-state device that converts light into an electric current
🗑
|
||||
| Thin-film transistor (TFT) | show 🗑
|
||||
| Photoconductor | show 🗑
|
||||
| One problem with the indirect DR system is? | show 🗑
|
||||
| show |
🗑
|
||||
| When a PSP is exposed to x-rays, which electrons are removed? | show 🗑
|
||||
| How are seams between the CCD tiles addressed? | show 🗑
|
||||
| Each pixel of a flat-panel indirect DR system contains a photodetector and a TFT. T or F? | show 🗑
|
||||
| Which causes a PSP to store some energy from x-ray exposure? | show 🗑
|
||||
| show | True
🗑
|
||||
| When the PSP plate is scanned by a laser, the stored energy is emitted as what? | show 🗑
|
||||
| show | Standard that enables imaging systems from different manufactures to communicate. First formulated in 1983
🗑
|
||||
| show | A 1 K (1280x1024)pixel
🗑
|
||||
| What monitor is used for general interpretation for the radiologist or viewing for QC by the technologist? | show 🗑
|
||||
| What monitor is necessary for digital mammograms? | show 🗑
|
||||
| Which storage classification provides the fastest retrieval? 1)online 2)offline 3)nearline | show 🗑
|
||||
| show | Display station
🗑
|
||||
| For a PACS to be used in radiography, what is necessary? | show 🗑
|
||||
| PACS comprises what areas? 1)Acquisition 2)Storage 3)Display | show 🗑
|
||||
| A RAID system uses which storage medium? | show 🗑
|
||||
| Which receptor's useful range of densities is defined by the body of the H&D curve? | show 🗑
|
||||
| show | Digital
🗑
|
||||
| Insufficient mAs (quanta) exposing a digital receptor will result in what? | show 🗑
|
||||
| show | kVp
🗑
|
||||
| Digital systems are more sensitive to scatter radiation. T or F? | show 🗑
|
||||
| Digital systems are more likely to record and display scatter and lost contrast as a result. T or F? | show 🗑
|
||||
| show | True
🗑
|
||||
| show | False
🗑
|
||||
| At what energy level are electrons trapped following exposure to a PSP? | show 🗑
|
||||
| What component of the CR reader converts light to an electronic signal? | show 🗑
|
||||
| show | Converts light to electrons
🗑
|
||||
| Which part of the flat-panel DR converts x-ray to light? | show 🗑
|
||||
| show | True
🗑
|
||||
| DICOM serves what purpose in PACS? | show 🗑
|
||||
| show | File room and reading room
🗑
|
||||
| show | 2) Interpreting physician
🗑
|
||||
| Why is storage one of the biggest challenges in PACS? | show 🗑
|
||||
| An electromagnet is used to record on what medium? | show 🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
volcomgrl12